Home / 158,352.28-218,529.68-90,367.90

Finding the Fourth Proportional to 158,352.28, 218,529.68 and 90,367.90

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Solution

The fourth proportional to 158,352.28, 218,529.68 and 90,367.90 is: 124,709.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,352.28 : 218,529.68 = 90,367.90 : x
  2. Step 2: Convert to fraction form
    158,352.28/218,529.68 = 90,367.90/x
  3. Step 3: Cross multiply
    158,352.28x = 218,529.68 × 90,367.90
  4. Step 4: Simplify right side
    158,352.28x = 19,748,068,269.27
  5. Step 5: Solve for x
    x = 19,748,068,269.27/158,352.28
  6. Step 6: Final answer
    x = 124,709.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.